package com.zhang.security;


import cn.hutool.json.JSONUtil;
import com.zhang.common.lang.Const;
import com.zhang.common.lang.Result;
import com.zhang.utils.JwtUtil;
import com.zhang.utils.RedisUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

//登陆成功处理器
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {

    @Autowired
    JwtUtil jwtUtil;
    @Autowired
    RedisUtil redisUtil;

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException {
        //登陆成功则将该次验证码删除
        String key = request.getParameter("key");
        redisUtil.hdel(Const.Captcha_Key,key);

        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = response.getOutputStream();

        //生成jwt，并放置到请求头中
        String jwt = jwtUtil.generateToken(authentication.getName());
        response.setHeader(jwtUtil.getHeader(),jwt);

        Result result = Result.succ("?????");

        outputStream.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));

        outputStream.flush();
        outputStream.close();
    }
}
